Object Not Found

I keep getting this error:

Object not found!
The requested URL was not found on this server. If you entered the URL manually please check your spelling and try again.
If you think this is a server error, please contact the webmaster.

When I view the samples, they work fine. So I tried creating my own php file that uses the editor in the FCK editor folder and it worked. But, when I try and move the file outside of the FCK editor folder, it stops working. Does anyone know what the problem could be?
Thanks!
Daniel